(19)
(11) EP 2 209 548 A1

(12)

(43) Date of publication:
28.07.2010 Bulletin 2010/30

(21) Application number: 08845975.5

(22) Date of filing: 28.10.2008
(51) International Patent Classification (IPC): 
B01F 17/00(2006.01)
(86) International application number:
PCT/EP2008/064593
(87) International publication number:
WO 2009/056538 (07.05.2009 Gazette 2009/19)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 30.10.2007 US 1276

(71) Applicants:
  • Unilever PLC
    100 Victoria Embankment London, Greater London EC4Y 0DY (GB)

    CY GB IE MT 
  • Unilever N.V.
    3013 AL Rotterdam (NL)

    AT BE BG CH LI CZ DE DK EE ES FI FR GR HR HU IS IT LT LU LV MC NL NO PL PT RO SE SI SK TR 
  • University Of Delaware
    Newark, DE 19716 (US)

(72) Inventors:
  • WAGNER, Norman, John
    Newark Delaware 19711 (US)
  • KALER, Eric, W.
    Setauket New York 11733 (US)
  • NETTESHEIM, Florian
    Wilmington Delaware 19806 (US)
  • HELGESON, Matthew, E.
    Newark Delaware 19702 (US)
  • LIBERATORE, Matthew, W.
    Colorado 80401 (US)
  • ANANTHAPADMANABHAN, Kavssery, Parameswaran
    Connecticut 06611 (US)
  • VETHAMUTHU, Martin, Swanson
    Connecticut 06611 (US)
  • LIPS, Alexander
    Wirral Merseyside CH63 3JW (GB)

(74) Representative: Mulder, Cornelis Willem Reinier 
Unilever Patent Group Colworth House
Sharnbrook Bedford MK44 1LQ
Sharnbrook Bedford MK44 1LQ (GB)

   


(54) METHOD OF BUILDING VISCOSITY AND VISCOELASTICITY IN SURFACTANT SOLUTIONS BY ADDING NANOPARTICLES AND COMPOSITIONS THEREOF